WO2019119848A1 - 蒸烤设备用内胆及具有其的烤箱 - Google Patents

蒸烤设备用内胆及具有其的烤箱 Download PDF

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Publication number
WO2019119848A1
WO2019119848A1 PCT/CN2018/102169 CN2018102169W WO2019119848A1 WO 2019119848 A1 WO2019119848 A1 WO 2019119848A1 CN 2018102169 W CN2018102169 W CN 2018102169W WO 2019119848 A1 WO2019119848 A1 WO 2019119848A1
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Prior art keywords
wall surface
inner liner
liner
curved surface
side wall
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PCT/CN2018/102169
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English (en)
French (fr)
Inventor
尤艳
陈兴强
梁少棠
冷芬勇
丁泺火
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Gree Electric Appliances Inc of Zhuhai
Gree Wuhan Electric Appliances Co Ltd
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Gree Electric Appliances Inc of Zhuhai
Gree Wuhan Electric Appliances Co Ltd
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Application filed by Gree Electric Appliances Inc of Zhuhai, Gree Wuhan Electric Appliances Co Ltd filed Critical Gree Electric Appliances Inc of Zhuhai
Publication of WO2019119848A1 publication Critical patent/WO2019119848A1/zh
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Ceased legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J37/00—Baking; Roasting; Grilling; Frying
    • A47J37/06—Roasters; Grills; Sandwich grills

Definitions

  • the present invention relates to the field of steaming equipment, and in particular to a liner for a steaming device and an oven having the same.
  • the oven is a sealed appliance used to bake food or to dry products, which is widely used in household and industrial production.
  • Typical household ovens include desktop and embedded types.
  • the temperature field inside the existing oven is not uniform, which affects the baking effect, resulting in poor taste of the food after baking, and even the problem of partial baking of the food in some areas of the food, and the inner wall of the oven liner exists.
  • Many sanitary corners, such as oil stains and other impurities generated during the baking process, are easily accumulated in the sanitary corners and are difficult to clean, which affects the user's comfort.
  • the present invention adopts the following technical solutions:
  • An inner liner for a steaming device wherein an inner wall surface of the inner liner includes a left side wall surface, a right side wall surface, a rear wall surface, a top wall surface, and a bottom wall surface, and at least one of the inner wall surfaces of the inner liner is at least one inner wall surface
  • the portion is provided as a curved surface, the middle portion of the curved surface being recessed in a direction away from the inner cavity of the inner liner or in a direction close to the inner cavity of the inner liner.
  • the curved surface is recessed from its outer edge toward its geometric center gradually away from the inner cavity of the inner liner.
  • the difference between the maximum distance and the minimum distance between the left side wall surface and the right side wall surface is 10 to 20 mm; and/or
  • the difference between the maximum distance and the minimum distance between the top wall surface and the bottom wall surface is 33 to 43 mm; and/or,
  • the difference between the maximum distance and the minimum distance of the rear wall surface from the front end surface of the inner liner is 30 to 40 mm.
  • At least one of the respective inner wall faces of the inner liner is provided as a curved surface.
  • the bottom wall surface is formed as a curved surface whose central portion is recessed away from the inner cavity of the inner casing; or
  • the left side wall surface, the rear wall surface, and the right side wall surface are formed as a curved surface in which the middle portion is recessed away from the inner cavity of the inner tank; or
  • the top wall surface, the left side wall surface, the bottom wall surface, and the right side wall surface are formed as curved surfaces in which the central portion is recessed away from the inner cavity of the inner liner.
  • At least two adjacent inner wall faces are smoothly connected by a transition surface.
  • any adjacent two inner wall faces are smoothly connected by the transition curved surface.
  • two adjacent inner wall faces form three of the transition curved surfaces, wherein at least two transition curved surfaces are smoothly connected by a connecting curved surface.
  • a position at which the three transition surfaces meet is formed as a spherical surface, and the spherical surface constitutes the connecting curved surface.
  • the transition surface is part of a cylindrical surface.
  • the inner liner is surrounded by a sheet material, the sheet material being a steel sheet, preferably a cold rolled steel sheet; and/or
  • the sheet has a thickness of 0.4 to 0.8 mm, preferably 0.6 mm; and/or,
  • the inner surface of the sheet is coated with an enamel coating
  • the invention employs the following technical solutions:
  • the steaming device provided by the invention forms at least part of the inner wall surface of the inner liner into a curved surface, and the middle portion of the curved surface is recessed in a direction away from the inner cavity of the inner liner or in a direction close to the inner cavity of the inner liner, and the inner liner is improved by the curved surface design.
  • the airflow flow field in the fundamental solution solves the problem of uneven temperature field of the existing oven, so that the temperature field in the inner cavity of the inner tank is more uniform, thereby greatly improving the baking effect of the steaming equipment.
  • FIG. 1 is a schematic perspective view showing a three-dimensional structure of a liner provided by an embodiment of the present invention
  • FIG. 2 is a second schematic structural view of a liner provided by a specific embodiment of the present invention.
  • FIG. 3 is a schematic view showing a flow field of a gas flow in a lumen of a liner provided by an embodiment of the present invention
  • FIGS. 4a and 4b are views showing a comparison of airflow flow fields at the intersection of the inner liners of the inner liners and the airflow flow field at the intersection of the liners and the three sidewalls provided by the embodiment of the present invention
  • Figure 5 shows a front view of a liner provided by an embodiment of the present invention.
  • orientations of "left”, “right”, “top”, “bottom” and “rear” as described in the present application are the orientations of the steaming device in the state of use, and when the user faces the door side of the steaming device, the side close to the user For "front”, the side away from the user is “back”.
  • the present application provides a liner for a steaming device, which can be applied to an oven, a micro-steaming machine, a microwave oven having an oven function, or the like, or a baking box or a steam box. Especially in steaming equipment with a large volume. As shown in FIG. 1 and FIG.
  • the inner tank is formed as a front open shell structure
  • the inner wall surface of the inner liner includes a left side wall surface 1, a right side wall surface 2, a rear wall surface 3, a top wall surface 4, and a bottom wall surface 5, wherein At least a portion of the inner wall surface is formed as a curved surface, and the curved surface design can improve the flow field of the airflow in the inner tank, thereby fundamentally solving the problem of uneven temperature field of the existing oven, so that the temperature field in the inner cavity of the inner tank is further Uniform, thus greatly improving the baking effect of the steaming equipment.
  • the curved surface is formed as a surface which is recessed from the central portion in a direction away from the inner cavity of the inner liner or in a direction close to the inner cavity of the inner liner.
  • the curved surface is formed as a surface that is recessed from the middle toward the inner cavity of the inner liner, so that the inner tank volume can be improved while improving the airflow flow field.
  • the curved surface may be recessed from its outer edge toward its geometric center toward the inner cavity away from the inner liner, forming a generally concave curved surface, preferably a spherical surface, and for example, the curved surface may also be part of a cylindrical surface.
  • the curved surface is preferably set to a relatively regular shape such as a spherical surface or a cylindrical surface, which facilitates the processing of the inner liner on the one hand and the air flow flow field on the other hand.
  • the radius of curvature of the curved surface should not be too large or too small, too much influences the airflow distribution in the middle of the inner cavity of the inner liner. If it is too small, the effect of homogenizing the flow field of the airflow is not obtained.
  • the inner wall surface structure and size of the inner liner are further optimized.
  • the maximum distance between the left side wall surface 1 and the right side wall surface 2 is L1.
  • the minimum distance between the left side wall surface 1 and the right side wall surface 2 is L2, and the difference between L1 and L2 is preferably 10 to 20 mm, further preferably 13 to 17 mm, further preferably 15 mm, and the top wall surface 4 and the bottom wall surface 5 are 5
  • the maximum distance between them is H1
  • the minimum distance between the top wall surface 4 and the bottom wall surface 5 is H2
  • the difference between H1 and H2 is preferably in the range of 33 to 43 mm, further preferably 36 to 40 mm, further preferably 38 mm, and the rear wall surface.
  • the maximum distance from the front end surface of the inner liner is W1
  • the minimum distance of the rear wall surface 3 from the front end surface of the inner liner is W2
  • the difference between W1 and W2 is preferably in the range of 30 to 40 mm, further preferably 33 to 37 mm, further preferably For 35mm, the airflow flow field in the inner cavity of the inner tank is further optimized by reasonably setting the curvature of each direction of the inner tank.
  • the inner wall surface provided with the curved surface may be one or more, and may be disposed according to specific requirements, and the inner wall surface may be partially formed into a curved surface, and more preferably, the inner wall surface is entirely formed into a curved surface, thereby further improving the pair.
  • the bottom wall surface 5 is formed as a curved surface, preferably formed as a curved surface in which the central portion is recessed away from the inner cavity of the inner liner, so that the air flow field can be optimized while falling to the bottom wall surface
  • the water, oil, and the like are collected in the middle of the bottom wall surface 5 under the guiding action of the curved surface, thereby facilitating the user to clean the inner liner; in another embodiment, the left side wall 1, the rear wall surface 3 and the right side wall surface 2 are formed.
  • the top wall surface 4, the left side wall surface 1, the bottom wall surface 5, and the right side wall surface 2 are formed into a curved surface so as to be surrounded by Airflow homogenization is performed in the direction of the horizontal central axis of the gallbladder.
  • the left side wall surface 1, the right side wall surface 2, the rear wall surface 3, the top wall surface 4, and the bottom wall surface 5 are each formed into a curved surface, and further preferably, as shown in FIGS. 1 and 2, The curved surface of the central portion is recessed away from the inner cavity of the inner tank.
  • a circumferential air flow can be formed in the inner bladder, and the air flow can be along the A direction along the top wall surface 4 and the left side wall surface 1 in FIG.
  • the bottom wall surface 5 and the rear wall surface 3 are circulated, and may also circulate along the B direction in FIG. 3 along the left side wall surface 1, the rear wall surface 3, the right side wall surface 2, and the inner wall surface (not shown), thereby A uniform flow field is formed in the inner cavity of the inner tank to ensure uniform heating throughout the inner cavity of the inner liner, thereby avoiding the problem of partial localization of the food.
  • the adjacent inner wall surfaces are smoothly connected by the transition curved surface 6, so that the air flow resistance can be reduced, the air flow field effect can be optimized, the sanitary dead angle of the inner liner can be reduced, and the inner wall surface of the inner liner can be conveniently occupied by the user. Clean it.
  • the transition curved surface 6 is preferably a large R rounded corner to facilitate cleaning and to ensure an optimized effect on the flow field of the air flow.
  • any adjacent two inner wall surfaces are smoothly connected by the transition curved surface 6 to ensure the three inner wall surfaces. Airflow flow field optimization at the junction and ease of cleaning.
  • the adjacent two transition curved surfaces 6 are smoothly connected by the connecting curved surface 7, so that as shown in FIG. 4b, the airflow can smoothly turn when passing through the corner, the energy attenuation is small, and, in addition, the corner passes through a similar circle.
  • the corner connecting surface 7 is connected in a transitional manner, which is very convenient for cleaning, thereby eliminating the sanitary corner.
  • two adjacent inner wall surfaces form three transition curved surfaces 6, and as shown in FIG. 4b, the rear wall surface 3, the right side wall surface 2 and the bottom wall surface 5 are adjacent to each other, two and two phases.
  • each two adjacent wall surfaces are smoothly connected by the transition curved surface 6, thereby forming three transition curved surfaces 6, and the connecting curved surface 7 at the position where the three transition curved surfaces 6 meet at the same time transitions the three transition curved surfaces 6 at the same time.
  • the connecting curved surface 7 is preferably spherical, which facilitates processing on the one hand and an optimum airflow flow field on the other hand.
  • the plurality of sheets of the inner liner provided by the present application are formed, and the sheet material is formed into a curved panel, which can be formed by die casting, rolling, or the like. Since the sheet material has a curved shape, problems such as stress concentration are easily caused, and for this problem,
  • the material of the sheet material is selected in the present application, and the thickness of the sheet material is preferably in the range of 0.4 to 0.8 mm, more preferably 0.6 mm, and the sheet material is a steel sheet, and further preferably a cold rolled steel sheet BTC1.
  • the inner surface of the sheet is coated with an enamel coating.
  • the steaming device provided by the invention forms at least part of the inner wall surface of the inner tank into a curved surface, and improves the airflow flow field in the inner tank through the curved surface design, thereby fundamentally solving the problem that the temperature field of the existing oven is not uniform, so that the inner tank is made
  • the temperature field in the inner cavity is more uniform, thereby greatly improving the baking effect of the steaming equipment.
  • the adjacent inner wall surfaces are smoothly connected by the transition curved surface (6), which can further optimize the airflow flow field, and at the same time eliminate the sanitary dead angle of the inner liner, and facilitate the user to clean the inner liner.
  • the present application also provides an oven, especially an embedded oven, which has a uniform temperature field, and the baked food is uniform in color and convenient for cleaning.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Cookers (AREA)

Abstract

一种蒸烤设备用内胆及烤箱，内胆的内壁面包括左侧壁面（1）、右侧壁面（2）、后壁面（3）、顶壁面（4）和底壁面（5），内胆的各个内壁面中的至少一个内壁面的至少部分设置为曲面，曲面的中部向远离内胆的内腔的方向或者靠近内胆的内腔的方向凹陷。蒸烤设备将内胆的内壁面的至少部分形成为曲面，通过曲面设计改善内胆中的气流流场，从根本上解决了现有烤箱温度场不均匀的问题，使得内胆的内腔中的温度场更加均匀，从而提高蒸烤设备的烘烤效果。

Description

蒸烤设备用内胆及具有其的烤箱 技术领域
本发明涉及蒸烤设备领域，具体涉及一种蒸烤设备用内胆以及具有该内胆的烤箱。
背景技术
烤箱是一种密封的用来烘烤食物或烘干产品的电器，其广泛应用于家庭以及工业生产中。通常的家用烤箱包括有台式、嵌入式等多种类型。现有的烤箱内部的温度场不均匀，从而影响烘烤效果，造成烘烤后的食物口感欠佳，甚至出现食物的部分区域烤糊而部分区域夹生的问题，另外，烤箱内胆的内壁存在很多卫生死角，在烘烤过程中产生的油污等杂质极容易积存在卫生死角中难以清理，影响用户的使用舒适度。
发明内容
有鉴于此，本发明的目的之一是提供一种温度场均匀的蒸烤设备用内胆及具有该内胆的烤箱。
为达上述目的，一方面，本发明采用如下技术方案：
一种蒸烤设备用内胆，所述内胆的内壁面包括左侧壁面、右侧壁面、后壁面、顶壁面和底壁面，所述内胆的各个内壁面中的至少一个内壁面的至少部分设置为曲面，所述曲面的中部向远离所述内胆的内腔的方向或者靠近所述内胆的内腔的方向凹陷。
优选地，所述曲面由其外边缘向其几何中心逐渐向远离所述内胆的内腔的方向凹陷。
优选地，所述左侧壁面与所述右侧壁面之间的最大距离与最小距离之差为10至20mm；和/或，
所述顶壁面与所述底壁面之间的最大距离与最小距离之差为33至43mm；和/或，
所述后壁面距离所述内胆的前端面的最大距离与最小距离之差为30至40mm。
优选地，所述曲面为球面，形成所述曲面的球面的半径r与所述内胆的容积L的关系为L/r＝0.05至0.15。
优选地，所述内胆的各个内壁面中的至少一个设置为曲面。
优选地，所述底壁面形成为中部向远离所述内胆的内腔的方向凹陷的曲面；或者，
所述左侧壁面、后壁面和右侧壁面形成为中部向远离所述内胆的内腔的方向凹陷的曲面；或者，
所述顶壁面、左侧壁面、底壁面和右侧壁面形成为中部向远离所述内胆的内腔的方向凹陷的曲面。
优选地，至少有两个相邻的内壁面之间通过过渡曲面平滑连接。
优选地，两两相邻的三个内壁面中，任意相邻的两个内壁面之间均通过所述过渡曲面平滑连接。
优选地，两两相邻的三个内壁面形成三个所述过渡曲面，其中至少两条过渡曲面之间通过连接曲面平滑连接。
优选地，三个所述过渡曲面交汇的位置形成为球面，所述球面构成所述连接曲面。
优选地，所述过渡曲面为圆柱面的一部分。
优选地，所述圆柱面的半径R与所述内胆的容积L的关系为L/R＝2.4至2.6。
优选地，所述内胆由板材围成，所述板材为钢板，优选为冷轧钢板；和/或，
所述板材的厚度为0.4至0.8mm，优选为0.6mm；和/或，
所述板材的内表面涂覆有搪瓷涂层
另一方面，本发明采用以下技术方案：
一种烤箱，包括如上所述的内胆。
本发明提供的蒸烤设备将内胆的内壁面的至少部分形成为曲面，且曲面的中部向远离内胆的内腔的方向或者靠近内胆的内腔的方向凹陷，通过曲面设计改善内胆中的气流流场，从根本上解决了现有烤箱温度场 不均匀的问题，使得内胆的内腔中的温度场更加均匀，从而大大提高蒸烤设备的烘烤效果。
附图说明
通过以下参照附图对本发明实施例的描述，本发明的上述以及其它目的、特征和优点将更为清楚，在附图中：
图1示出本发明具体实施方式提供的内胆的立体结构示意图之一；
图2示出本发明具体实施方式提供的内胆的立体结构示意图之二；
图3示出本发明具体实施方式提供的内胆的内腔中气流流场的示意图；
图4a和4b示出现有内胆三内壁交汇处的气流流场和本发明具体实施方式提供的内胆三侧壁交汇处的气流流场对比示意图；
图5示出本发明具体实施方式提供的内胆主视图。
图中，1、左侧壁面；2、右侧壁面；3、后壁面；4、顶壁面；5、底壁面；6、过渡曲面；7、连接曲面。
具体实施方式
以下基于实施例对本发明进行描述，但是本发明并不仅仅限于这些实施例。在下文对本发明的细节描述中，详尽描述了一些特定的细节部分。对本领域技术人员来说没有这些细节部分的描述也可以完全理解本发明。为了避免混淆本发明的实质，公知的方法、过程、流程、元件并没有详细叙述。
此外，本领域普通技术人员应当理解，在此提供的附图都是为了说明的目的，并且附图不一定是按比例绘制的。
除非上下文明确要求，否则整个说明书和权利要求书中的“包括”、“包含”等类似词语应当解释为包含的含义而不是排他或穷举的含义；也就是说，是“包括但不限于”的含义。
在本发明的描述中，需要理解的是，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性。此外，在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上。
本申请所述的“左”“右”“顶”“底”“后”等方位均为蒸烤设备在使用状态时的方位，当用户面对蒸烤设备门侧时，靠近用户的一侧为“前”，远离用户的一侧为“后”。
针对现有蒸烤设备存在的温度场不均匀的问题，申请人发现，造成温度场不均匀的原因主要是因为内胆的各个内壁面均为平面，导致气流在内胆中的流动不畅造成的，针对这一问题，本申请提供了一种蒸烤设备用内胆，该内胆可应用于烤箱、微蒸烤一体机、具有烤箱功能的微波炉等具有烘烤功能或者蒸箱等设备，尤其是容积较大的蒸烤设备中。如图1和图2所示，内胆形成为前部敞开的壳体结构，内胆的内壁面包括左侧壁面1、右侧壁面2、后壁面3、顶壁面4和底壁面5，其中至少有一个内壁面的至少部分形成为曲面，曲面设计能够改善内胆中的气流流场，从根本上解决了现有烤箱温度场不均匀的问题，使得内胆的内腔中的温度场更加均匀，从而大大提高蒸烤设备的烘烤效果。
曲面形成为由中部向远离内胆的内腔的方向或者靠近内胆的内腔的方向凹陷的面，通过这种整体弯曲的方式能够在各个方位上实现对气流的匀流作用，优选地，曲面形成为由中部向远离内胆的内腔的方向凹陷的面，如此，能够在改善气流流场的同时提高内胆容积。例如，曲面可以由其外边缘向其几何中心逐渐向远离内胆的内腔的方向凹陷，形成整体凹陷的曲面，优选为球面，再例如，曲面还可以为圆柱面的一部分。曲面优选设置为球面或者圆柱面这些较为规则的形状，一方面方便内胆的加工，另一方面能够更加匀化气流流场。
曲面的曲率半径不宜过大也不宜过小，过大会影响内胆的内腔中部的气流分布，过小则起不到匀化气流流场的效果，优选地，当曲面形成为球面时，球面半径r与内胆的容积L的关系为L/r＝0.05至0.15，进一步优选为0.1；当曲面形成为圆柱面的一部分时，圆柱面的半径r与内胆的容积L的关系为L/r＝0.05至0.15，进一步优选为0.1。
为使得内胆的内腔获得最优的气流分布，本申请对内胆的内壁面结构及尺寸进行了进一步优化，参照图5，左侧壁面1与右侧壁面2之间的最大距离为L1，左侧壁面1与右侧壁面2之间的最小距离为L2，L1与L2之差的优选范围为10至20mm，进一步优选为13至17mm，进一步 优选为15mm，顶壁面4与底壁面5之间的最大距离为H1，顶壁面4与底壁面5之间的最小距离为H2，H1与H2之差的优选范围为33至43mm，进一步优选为36至40mm，进一步优选为38mm，后壁面3距离内胆的前端面的最大距离为W1，后壁面3距离内胆的前端面的最小距离为W2，W1与W2之差的优选范围为30至40mm，进一步优选为33至37mm，进一步优选为35mm，通过合理设置内胆各个方位的弧度大小来进一步优化内胆的内腔中的气流流场。
其中，设置有曲面的内壁面可以是一个，也可以是多个，可根据具体需求进行设置，内壁面上可以为部分形成为曲面，更优选地，内壁面整个形成为曲面，从而进一步提高对气流流场的优化，在一个实施例中，底壁面5形成为曲面，优选形成为中部向远离内胆的内腔的方向凹陷的曲面，如此，在优化气流流场的同时能够使得落到底壁面上的水、油污等在曲面的导向作用下汇集在底壁面5的中部，从而方便用户对内胆的清理；在另一个实施例中，左侧壁面1、后壁面3和右侧壁面2形成为曲面，从而在环绕铅锤线的方向上进行气流的匀化，在另一个实施例中，顶壁面4、左侧壁面1、底壁面5和右侧壁面2形成为曲面，从而在环绕内胆的水平中轴线的方向上进行气流匀化。在进一步优选的实施例中，左侧壁面1、右侧壁面2、后壁面3、顶壁面4和底`壁面5均形成为曲面，进一步优选地，如图1和图2所示均形成为中部向远离内胆的内腔的方向凹陷的曲面，如此，如图3所示，可以在内胆中形成环向气流，气流可以沿图3中的A向沿顶壁面4、左侧壁面1、底壁面5和后壁面3循环流动，还可以沿图3中的B向沿左侧壁面1、后壁面3、右侧壁面2和门内壁面(图中未示出)循环流动，从而在内胆的内腔中形成均匀流场，保证内胆的内腔中各处的受热均匀，避免出现食物局部烤糊局部夹生的问题。
优选地，相邻的内壁面之间通过过渡曲面6平滑连接，如此，既能够达到减少气流阻力，优化气流流场的效果，又能够减少内胆的卫生死角，方便用户对内胆的内壁面进行清洁。过渡曲面6优选为大R圆角，以便于清洁以及保证对气流流场的优化效果，例如，过渡曲面6为圆柱面的一部分，该圆柱面的半径R与内胆的容积L的关系为L/R＝2.4至2.6， 进一步优选为2.5，当然，圆柱面的半径R也不能过大，过大会影响内胆的容积。
进一步地，如图4a所示，由于两两相邻的三个内壁面处最容易积存污物不宜清理，且气流在此处拐角时造成大量的衰减，基于此，优选地，两两相邻的三个内壁面(例如图1中后壁面3、右侧壁面2和底壁面5)中，任意相邻的两个内壁面之间均通过过渡曲面6平滑连接，以保证三个内壁面的交汇处的气流流场优化以及清理的便捷性。
进一步优选地，相邻两条过渡曲面6之间通过连接曲面7平滑连接，如此，如图4b所示，气流在通过拐角时能够平滑转弯，能量衰减很少，另外，由于拐角处通过类似圆角的连接曲面7过渡连接，非常方便清理，从而消除了卫生死角。在一个优选的实施例中，两两相邻的三个内壁面形成三个过渡曲面6，以图4b为例，后壁面3、右侧壁面2和底壁面5两两相邻，两两相接，每两个相邻的壁面之间均通过过渡曲面6平滑连接，从而形成三个过渡曲面6，三个过渡曲面6交汇的位置处的连接曲面7同时将三个过渡曲面6过渡连接，该连接曲面7优选呈球面，一方面方便加工，另一方面能够获得最优的气流流场。该球面的半径R与内胆的容积L的关系为L/R＝2.4至2.6，进一步优选为2.5。
优选地，本申请提供的内胆多块板材围成，板材形成为曲面板，可以通过压铸、轧制等方式形成，由于板材为弯曲的形状，容易存在应力集中等问题，针对这一问题，本申请对板材的材质进行了选型，板材的厚度的优选范围为0.4至0.8mm，进一步优选为0.6mm，板材采用钢板，进一步优选为冷轧钢板BTC1。另外，为了方便油污的清理，在板材的内表面涂覆有搪瓷涂层。
本发明提供的蒸烤设备将内胆的内壁面的至少部分形成为曲面，通过曲面设计改善内胆中的气流流场，从根本上解决了现有烤箱温度场不均匀的问题，使得内胆的内腔中的温度场更加均匀，从而大大提高蒸烤设备的烘烤效果。另外，相邻的内壁面之间通过过渡曲面(6)平滑连接，能够进一步优化气流流场，同时消除内胆的卫生死角，方便用户对内胆的清理。
针对上述内胆，本申请还提供了一种烤箱，尤其是嵌入式烤箱，温 度场均匀、烘焙出的食物色泽均匀且方便清理。
本领域的技术人员容易理解的是，在不冲突的前提下，上述各优选方案可以自由地组合、叠加。
应当理解，上述的实施方式仅是示例性的，而非限制性的，在不偏离本发明的基本原理的情况下，本领域的技术人员可以针对上述细节做出的各种明显的或等同的修改或替换，都将包含于本发明的权利要求范围内。

Claims (14)

  1. 一种蒸烤设备用内胆，其特征在于，所述内胆的内壁面包括左侧壁面(1)、右侧壁面(2)、后壁面(3)、顶壁面(4)和底壁面(5)，所述内胆的各个内壁面中的至少一个内壁面的至少部分设置为曲面，所述曲面的中部向远离所述内胆的内腔的方向或者靠近所述内胆的内腔的方向凹陷。
  2. 根据权利要求1所述的内胆，其特征在于，所述曲面由其外边缘向其几何中心逐渐向远离所述内胆的内腔的方向凹陷。
  3. 根据权利要求1所述的内胆，其特征在于，所述左侧壁面(1)与所述右侧壁面(2)之间的最大距离与最小距离之差为10至20mm；和/或，
    所述顶壁面(4)与所述底壁面(5)之间的最大距离与最小距离之差为33至43mm；和/或，
    所述后壁面(3)距离所述内胆的前端面的最大距离与最小距离之差为30至40mm。
  4. 根据权利要求1所述的内胆，其特征在于，所述曲面为球面，形成所述曲面的球面的半径r与所述内胆的容积L的关系为L/r＝0.05至0.15。
  5. 根据权利要求1至4之一所述的内胆，其特征在于，所述内胆的各个内壁面中的至少一个设置为曲面。
  6. 根据权利要求5所述的内胆，其特征在于，所述底壁面(5)形成为中部向远离所述内胆的内腔的方向凹陷的曲面；或者，
    所述左侧壁面(1)、后壁面(3)和右侧壁面(2)形成为中部向远离所述内胆的内腔的方向凹陷的曲面；或者，
    所述顶壁面(4)、左侧壁面(1)、底壁面(5)和右侧壁面(2)形成为中部向远离所述内胆的内腔的方向凹陷的曲面。
  7. 根据权利要求1至4之一所述的内胆，其特征在于，至少有两个相邻的内壁面之间通过过渡曲面(6)平滑连接。
  8. 根据权利要求7所述的内胆，其特征在于，两两相邻的三个内壁面中，任意相邻的两个内壁面之间均通过所述过渡曲面(6)平滑连接。
  9. 根据权利要求8所述的内胆，其特征在于，两两相邻的三个内壁面形成三个所述过渡曲面(6)，其中至少两条过渡曲面(6)之间通过连接曲面(7)平滑连接。
  10. 根据权利要求9所述的内胆，其特征在于，三个所述过渡曲面(6)交汇的位置形成为球面，所述球面构成所述连接曲面(7)。
  11. 根据权利要求7所述的内胆，其特征在于，所述过渡曲面(6)为圆柱面的一部分。
  12. 根据权利要求11所述的内胆，其特征在于，所述圆柱面的半径R与所述内胆的容积L的关系为L/R＝2.4至2.6。
  13. 根据权利要求1至4之一所述的内胆，其特征在于，所述内胆由板材围成，所述板材为钢板，优选为冷轧钢板；和/或，
    所述板材的厚度为0.4至0.8mm，优选为0.6mm；和/或，
    所述板材的内表面涂覆有搪瓷涂层。
  14. 一种烤箱，其特征在于，包括如权利要求1至13之一所述的内胆。
PCT/CN2018/102169 2017-12-22 2018-08-24 蒸烤设备用内胆及具有其的烤箱 Ceased WO2019119848A1 (zh)

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